The Swemed Sodium Electrolyte Reagent Kit 2 × 25 ml is a professional clinical biochemistry reagent intended for the quantitative colorimetric determination of sodium in serum and plasma.
Swemed describes its sodium assay as a colorimetric endpoint method based on precipitation of sodium as a sodium-magnesium-uranyl acetate complex, followed by reaction of excess uranium with ferrocyanide to form a chromophore whose absorbance varies inversely with sodium concentration.
The reagent and standard are supplied ready to use, and the assay is designed for professional laboratory use. Swemed lists sodium as a liquid-stable electrolyte reagent with linearity up to 200 mEq/L.
This Shopify listing is for the 2 × 25 ml total reagent configuration supplied under the Swemed sodium range.
| Product Detail | Information |
|---|---|
| Product Name | Sodium Electrolyte Reagent Kit |
| Brand | Swemed Diagnostics |
| Pack Size | 2 × 25 ml |
| Product Category | Electrolyte / Biochemistry Reagent |
| Test Parameter | Sodium |
| Method | Colorimetric Method |
| Assay Mode | Endpoint |
| Wavelength | 630 nm |
| Temperature | 37°C |
| Unit | mEq/L |
| Standard Concentration | 150 mEq/L |
| Reaction Direction | Decreasing |
| Reagent Volume | 1000 µl |
| Sample Volume | 10 µl |
| Incubation | 10 minutes at room temperature |
| Linearity | Up to 200 mEq/L |
| Specimen | Serum / Heparin Plasma |
| Reagent Preparation | Ready to Use |
| Reagent Storage | 18–30°C |
| Freezing | Do Not Freeze |
| Analyser Compatibility | Open-System Fully Automatic & Semi-Automatic Biochemistry Analysers |
| Intended Use | Professional In Vitro Diagnostic Use |
| Seller | Microsidd India |
| Website | microsidd.com |
| Location | Bangalore / Bengaluru, Karnataka, India |
The assay settings above are provided in Swemed's current Sodium Reagent Kit insert.
Sodium is the major cation of extracellular fluid and plays an important role in:
Swemed notes that abnormal sodium concentrations can occur in a range of clinical conditions involving fluid loss, renal disease, adrenal disorders and severe dehydration.
Sodium is commonly measured together with:
The Swemed Sodium Colorimetric Method is based on precipitation of sodium as a sodium-magnesium-uranyl acetate triple salt.
The excess uranium subsequently reacts with ferrocyanide to form a coloured chromophore.
The absorbance of this chromophore varies inversely with the sodium concentration in the patient sample.
The manufacturer states that:
The sodium reagent and sodium standard are ready to use.
This simplifies routine testing because no working-reagent preparation is required before use.
| Parameter | Swemed Specification |
|---|---|
| Test | Sodium |
| Method | Colorimetric |
| Mode | Endpoint |
| Wavelength | 630 nm |
| Unit | mEq/L |
| Temperature | 37°C |
| Standard Concentration | 150 mEq/L |
| Reaction Slope | Decreasing |
| Reagent Volume | 1000 µl |
| Sample Volume | 10 µl |
| Incubation | 10 minutes at room temperature |
| Blanking | Reagent Blank |
| Linearity | 200 mEq/L |
| Tube | Reagent | Standard / Sample |
|---|---|---|
| Blank | 1000 µl | — |
| Standard | 1000 µl | 10 µl Standard |
| Test | 1000 µl | 10 µl Sample |
Mix and incubate for:
10 minutes at room temperature
Then read the absorbance of the standard and patient sample against the reagent blank at:
630 nm.
Sodium (mEq/L) = Absorbance of Sample ÷ Absorbance of Standard × Concentration of Standard
Manufacturer standard concentration:
150 mEq/L.
The Swemed Sodium Reagent Kit can be used with compatible programmable open-system analysers where the required assay parameters can be entered and validated.
| Open-System Setting | Sodium Application |
|---|---|
| Mode | Endpoint |
| Wavelength | 630 nm |
| Temperature | 37°C |
| Reagent Volume | 1000 µl |
| Sample Volume | 10 µl |
| Standard | 150 mEq/L |
| Incubation | 10 minutes at RT |
| Reaction | Decreasing |
| Blank | Reagent Blank |
| Unit | mEq/L |
Suitable analyser categories include:
The laboratory must verify instrument compatibility and validate the application before routine patient reporting.
Swemed recommends:
For serum, fresh, clear and non-haemolysed specimens are preferred.
The manufacturer states that plasma collected using non-sodium-containing anticoagulants can be used.
Swemed specifically advises avoiding:
because they may interfere with the sodium result.
Because sodium is the analyte being measured, laboratory collection systems containing sodium salts should also be avoided.
According to the Swemed insert:
| Storage Condition | Stability |
|---|---|
| 2–8°C | Up to 2 weeks |
| Room Temperature | 24 hours |
Contaminated specimens should be discarded.
The stated assay linearity is:
Up to 200 mEq/L.
Laboratories should follow their validated dilution procedure and current manufacturer instructions for samples exceeding the measuring range.
| Specimen | Manufacturer Reference Range |
|---|---|
| Serum / Plasma | 135–155 mEq/L |
Swemed notes that laboratories should verify whether the stated reference interval is appropriate for their own patient population.
Swemed states that the reagent should be:
Possible signs of reagent deterioration include:
The Swemed Sodium reagent contains sodium azide as a preservative and should be handled according to normal laboratory safety procedures.
Professional users should:
| Parameter | Laboratory Relevance |
|---|---|
| Sodium | Extracellular fluid and osmotic balance |
| Potassium | Cellular and cardiac electrolyte balance |
| Chloride | Fluid and acid-base balance |
| Calcium | Mineral and neuromuscular physiology |
| Magnesium | Neuromuscular and metabolic function |
| Urea | Renal and protein metabolism |
| Creatinine | Renal filtration assessment |
| Buyer Type | Typical Application |
|---|---|
| Pathology Laboratories | Routine sodium testing |
| Diagnostic Centres | Electrolyte and renal-profile testing |
| Hospital Laboratories | Clinical chemistry investigations |
| Nephrology Centres | Electrolyte monitoring |
| Dialysis Centres | Renal and electrolyte testing |
| Clinical Chemistry Laboratories | Routine sodium estimation |
| Medical Institutions | Teaching and diagnostic use |
| Healthcare Organisations | Institutional procurement |
| Laboratory Distributors | Professional supply where permitted |
Microsidd India supplies electrolyte reagents, renal-profile reagents and clinical biochemistry products from Bangalore / Bengaluru, Karnataka.
The Swemed Sodium Electrolyte Reagent Kit 2 × 25 ml is suitable for pathology laboratories, diagnostic centres, hospitals, nephrology facilities and professional clinical chemistry laboratories using compatible open-system analysers.
The product can be ordered through microsidd.com, subject to stock availability and delivery serviceability.
Relevant buyer searches include:
The Swemed Sodium Electrolyte Reagent Kit 2 × 25 ml is a ready-to-use professional clinical chemistry reagent for quantitative sodium determination by a colorimetric endpoint method.
It uses a Colorimetric Method based on sodium precipitation and subsequent chromophore formation.
630 nm.
10 µl.
1000 µl.
150 mEq/L.
Up to 200 mEq/L.
Yes. Both the reagent and standard are ready to use.
Swemed lists serum and heparin plasma.
Yes, when used on compatible open-system semi-automatic biochemistry analysers after programming and application validation.
Yes, when used on compatible open-system fully automatic analysers that permit third-party reagent programming and support the required 630 nm endpoint assay.
| Entity | Details |
|---|---|
| Product | Sodium Electrolyte Reagent Kit |
| Brand | Swemed Diagnostics |
| Pack Size | 2 × 25 ml |
| Analyte | Sodium |
| Method | Colorimetric |
| Mode | Endpoint |
| Wavelength | 630 nm |
| Unit | mEq/L |
| Specimen | Serum / Heparin Plasma |
| Clinical Category | Electrolytes / Renal Profile |
| Product Category | Laboratory Reagents |
| Subcategory | Biochemistry Reagents |
| Analyser Compatibility | Open-System Fully Automatic & Semi-Automatic Analysers |
| Seller | Microsidd India |
| City | Bangalore / Bengaluru |
| State | Karnataka |
| Country | India |
| Website | microsidd.com |
Electrolyte reagents should be ordered only after verifying the exact parameter, method, wavelength, analyser compatibility, pack size, storage conditions and seller source.
Microsidd India focuses on laboratory, diagnostic and healthcare products and has long-standing experience in the IVD sector, making it easier for professional buyers to verify technical requirements before ordering.
| Buying Factor | Microsidd.com | Large Online Marketplaces | Offline / Local Suppliers |
|---|---|---|---|
| Seller Specialisation | Diagnostic & laboratory focused | Seller expertise varies | Dealer dependent |
| Method Verification | Colorimetric sodium can be confirmed | Listing details may be limited | Depends on dealer |
| Pack Verification | 2 × 25 ml can be confirmed | Pack listings may vary | Stock dependent |
| Open-System Guidance | Suitable for analyser-specific queries | Often limited | Dealer dependent |
| Seller Identity | Direct Microsidd India purchase | Marketplace seller may vary | Usually identifiable |
| GST Invoice | Available for eligible purchases | Seller dependent | May vary |
| B2B Procurement | Suitable for labs and institutions | Seller dependent | Usually local |
| Product Range | Specialist electrolyte and biochemistry catalogue | Broad but not specialised | Often limited |
| Customer Support | Direct Microsidd support | Marketplace + seller layer | Local support |
| India-Wide Supply | Subject to serviceability | Broad | Usually regional |
It is used for quantitative determination of sodium in serum and plasma by a colorimetric method.
2 × 25 ml.
Colorimetric Method.
630 nm.
Endpoint.
10 µl.
1000 µl.
150 mEq/L.
200 mEq/L.
Yes. Swemed states that the reagent and standard are ready to use.
The manufacturer advises avoiding EDTA, sodium fluoride and oxalate because they can interfere with results.
Store at 18–30°C, protected from light and contamination, and do not freeze.
Yes, on compatible open-system semi-automatic biochemistry analysers after application programming and laboratory validation.
Yes, on compatible open-system fully automatic biochemistry analysers supporting 630 nm endpoint programming.
No. It is for professional in vitro diagnostic use only.
The information on this product page is provided for general product identification, procurement and laboratory educational purposes only.
This product is intended for professional in vitro diagnostic use by trained laboratory personnel.
Sodium results should not be interpreted independently to diagnose or exclude electrolyte, renal, endocrine or fluid-balance disorders. Results should be evaluated with clinical history and other relevant investigations.
For open-system fully automatic and semi-automatic analysers, instrument compatibility, application settings, calibration, quality control and performance must be verified and validated by the laboratory before routine patient reporting.
The current Swemed package insert supplied with the actual product lot should always be treated as the definitive technical specification.
This product is non-returnable and non-exchangeable.
Please verify the brand, model, compatibility, pack size and product specifications before placing your order.
For laboratory reagents, customers should specifically verify the test parameter, methodology, analyser compatibility, reagent configuration and pack size before ordering.
Genuine cases involving an incorrect product received will be handled separately according to Microsidd.com's applicable policies and applicable law.
An original, continuous, unedited and uncut unboxing video is compulsory for making any claim regarding an incorrect product received.
